Impromptu
Impromptu adjective - Made or done without previous thought or preparation.
Usage example: our dinner guest thanked us with an impromptu song
Prepared
Prepared adjective - Made ready or fit or suitable beforehand.
Usage example: a prepared statement
Both words in one sentence
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Crazy-Prepared: Twilight already has a chalkboard and school desk set up in her library as she takes on Rainbow Dash as an impromptu student.
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On Person of Interest, Shaw's prepared to kill herself to avoid hurting Root when Root tells her if she actually does it, she'll kill herself too, turning the situation into an impromptu Suicide Pact until Shaw stands down.
Source: Stop, or I Shoot Myself! -
Crazy-Prepared: In OVA 5, when sent out on a impromptu scouting mission with Erwin, Yukari produces hand warmers, an entrenching tool, a lantern, and some food, that she carried "just in case".
Source: Anime / Girls und Panzer
Cite this Source
Prepared and Impromptu. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/impromptu/prepared
Impromptu & Prepared. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/impromptu/prepared>.
Prepared or Impromptu. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/impromptu/prepared.
Google Ngram Viewer shows how "impromptu" and "prepared" have occurred on timeline